From 7b5fe9c9115c92b7e6297216c789268961a19f98 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 21 Apr 2014 16:53:07 -0500 Subject: [PATCH] ARM: bcm: config option for l2 cache support Add a new config option ARCH_BCM_MOBILE_L2_CACHE that allows support for level-2 cache to be enabled or disabled at build time for BCM218XX and BCM21664 family SoCs. Build support for SMC only if it's required (currently it's only required for to support level 2 cache control). If arch/arm/mach-bcm/kona.c gets compiled, ARCH_BCM_MOBILE_L2_CACHE must have been selected, which implies CONFIG_CACHE_L2X0 is set. There is therefore no need to check CONFIG_CACHE_L2X0 at the top of kona_l2_cache_init(), so get rid of that check. Signed-off-by: Alex Elder Reviewed-by: Tim Kryger Reviewed-by: Markus Mayer Reviewed-by: Matt Porter Signed-off-by: Matt Porter --- arch/arm/mach-bcm/Kconfig | 12 +++++++++++- arch/arm/mach-bcm/Makefile | 5 ++++- arch/arm/mach-bcm/kona.c | 3 --- arch/arm/mach-bcm/kona.h | 5 +++++ 4 files changed, 20 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index 5f5740fc334f..28f90a01e3ac 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -18,7 +18,6 @@ config ARCH_BCM_MOBILE select ARM_GIC select GPIO_BCM_KONA select TICK_ONESHOT - select CACHE_L2X0 select HAVE_ARM_ARCH_TIMER select PINCTRL help @@ -43,6 +42,17 @@ config ARCH_BCM_21664 Enable support for the the BCM21664 family, which includes BCM21663 and BCM21664 variants. +config ARCH_BCM_MOBILE_L2_CACHE + bool "Broadcom mobile SoC level 2 cache support" + depends on (ARCH_BCM_281XX || ARCH_BCM_21664) + default y + select CACHE_L2X0 + select ARCH_BCM_MOBILE_SMC + +config ARCH_BCM_MOBILE_SMC + bool + depends on ARCH_BCM_281XX || ARCH_BCM_21664 + endmenu endif diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile index 7fb9b0402204..51549814f7cd 100644 --- a/arch/arm/mach-bcm/Makefile +++ b/arch/arm/mach-bcm/Makefile @@ -17,7 +17,10 @@ obj-$(CONFIG_ARCH_BCM_281XX) += board_bcm281xx.o obj-$(CONFIG_ARCH_BCM_21664) += board_bcm21664.o # BCM281XX and BCM21664 L2 cache control -obj-$(CONFIG_ARCH_BCM_MOBILE) += bcm_kona_smc.o bcm_kona_smc_asm.o kona.o +obj-$(CONFIG_ARCH_BCM_MOBILE_L2_CACHE) += kona.o + +# Support for secure monitor traps +obj-$(CONFIG_ARCH_BCM_MOBILE_SMC) += bcm_kona_smc.o bcm_kona_smc_asm.o plus_sec := $(call as-instr,.arch_extension sec,+sec) AFLAGS_bcm_kona_smc_asm.o :=-Wa,-march=armv7-a$(plus_sec) diff --git a/arch/arm/mach-bcm/kona.c b/arch/arm/mach-bcm/kona.c index ecdd71340a46..60b5dd5c866c 100644 --- a/arch/arm/mach-bcm/kona.c +++ b/arch/arm/mach-bcm/kona.c @@ -22,9 +22,6 @@ void __init kona_l2_cache_init(void) unsigned int result; int ret; - if (!IS_ENABLED(CONFIG_CACHE_L2X0)) - return; - ret = bcm_kona_smc_init(); if (ret) { pr_info("Secure API not available (%d). Skipping L2 init.\n", diff --git a/arch/arm/mach-bcm/kona.h b/arch/arm/mach-bcm/kona.h index 3a7a017c29cd..110185f7aad3 100644 --- a/arch/arm/mach-bcm/kona.h +++ b/arch/arm/mach-bcm/kona.h @@ -11,4 +11,9 @@ * GNU General Public License for more details. */ +#ifdef CONFIG_ARCH_BCM_MOBILE_L2_CACHE + void __init kona_l2_cache_init(void); +#else +#define kona_l2_cache_init() ((void)0) +#endif -- 2.34.1